Upgrade Spongy Castle and libphonenumber

Signed-off-by: Daniele Ricci <daniele.athome@gmail.com>
Fix new BC 1.51 APIs (X.509 bridge certificate UNTESTED)

Signed-off-by: Daniele Ricci <daniele.athome@gmail.com>
Update client-common-java commit pointer

Signed-off-by: Daniele Ricci <daniele.athome@gmail.com>
Merge branch 'master' into audio_message